If you follow this site, you will see there is a theme with Google – that theme is that they keep investing more and more into schema and markup. They keep adding more support for it and they keep encouraging webmasters and publishers to add it to their web sites…

The TravelAction schema is designed markup for to markup your HTML to show the “act of traveling from an fromLocation to a destination by a specified mode of transport, optionally with participants.” But this is not yet supported in search…